List of U.S. Highways in Iowa
From Infogalactic: the planetary knowledge core
 70px70px
Highway markers from different years for former US 32 (1926), US 75 (1961) and current US 151 (1971)
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| System information | |
|---|---|
| Length: | 3,627 mi (5,837 km) |
| Formed: | November 11, 1926[1] |
| Highway names | |
| US Routes: | US Highway nn (US nn) |
| System links | |
Mainline routes
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
|---|---|---|---|---|---|---|---|
 US 6 |
319.597 | 514.342 | I-480 / US-6 at Omaha, Neb. | I-74 / US 6 at Moline, Ill. | 1931 | current | |
 US 18 |
311.459 | 501.245 | US 18 near Canton, S.D. | US 18 / WIS 60 at McGregor | 1926 | current | |
 US 20 |
301.429 | 485.103 | I-129 / US-20 / US-75 at South Sioux City, Neb. | US 20 at East Dubuque, Ill. | 1926 | current | |
 US 30 |
330.266 | 531.512 | US-30 at Blair, Neb. | US 30 at Fulton, Ill. | 1926 | current | |
 US 32 |
322 | 518 | US 30 / US 75 in Council Bluffs | US 32 at Davenport | 1926 | 1931 | Replaced by US 6 |
 US 34 |
271.786 | 437.397 | US-34 near Plattsmouth, Neb. | US 34 at Gulfport, Ill. | 1926 | current | |
 US 52 |
166.409 | 267.809 | US 52 / IL 64 at Savanna, Ill. | US 52 near Burr Oak | 1935 | current | |
 US 55 |
225 | 362 | US 61 in Davenport | US 55 near Burr Oak | 1926 | 1935 | Replaced by US 52 and US 67 |
 US 61 |
192.283 | 309.449 | US 61 / US 136 at Keokuk | US 61 / US 151 at Dubuque | 1926 | current | |
 US 63 |
236 | 380 | US 63 near Lancaster, Mo. | US 63 near Chester | 1926 | current | |
 US 65 |
221.931 | 357.163 | US 65 at Lineville | US 65 near Gordonsville, Minn. | 1926 | current | |
 US 67 |
55.367 | 89.105 | US 67 at Davenport | US 52 / Iowa 64 near Sabula | 1934 | current | |
 US 69 |
228 | 367 | US 69 near Lamoni | US 69 at Emmons, Minn. | 1926 | current | |
 US 71 |
232.564 | 374.275 | US 71 at Braddyville | US 71 near Spirit Lake | 1926 | current | |
 US 75 |
79.994 | 128.738 | I-129 / US-20 / US-75 at South Sioux City, Neb. | US 75 near Rock Rapids | 1926 | current | |
 US 77 |
0.315 | 0.507 | US 77 / US 20 Bus. at South Sioux City, Neb. | I-29 / US 20 Bus. in Sioux City | 1929 | current | |
 US 136 |
3.690 | 5.938 | US 61 / US 136 at Keokuk | US 136 at Keokuk | 1951 | current | |
 US 151 |
107.661 | 173.264 | I-80 near the Amana Colonies | US 61 / US 151 at Dubuque | 1938 | current | |
 US 161 |
185 | 298 | US 61 in Keokuk | US 61 in Key West | 1926 | 1938 | Replaced by US 218 and US 151 |
 US 163 |
60 | 97 | US 65 / US 69 in Des Moines | US 63 in Oskaloosa | 1934 | 1937 | Replaced by Iowa 163 |
 US 169 |
234.876 | 377.996 | US 169 near Redding | US 169 near Lakota | 1930 | current | |
 US 218 |
274.995 | 442.562 | US 61 / US 136 in Keokuk | US 218 near St. Ansgar | 1926 | current | |
 US 275 |
59.391 | 95.581 | US 275 near Hamburg | US-275 / N-92 at Council Bluffs | 1932 | current |
Special routes
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This list is incomplete; you can help by expanding it.
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
|---|---|---|---|---|---|---|---|
| x25px City US 6 | 10.2[2] | 16.4 | US 6 in Des Moines | US 6 / US 65 in Des Moines | 1934 | 1968 | Former routing of US 6 |
 US 18 Business |
10.752 | 17.304 | I-35 / US 18 / Iowa 122 in Clear Lake | US 18 / US 65 in Mason City | 1998 | current | Serves the Mason City area |
| US 18 Business |
4.149 | 6.677 | US 18 / Iowa 76 near McGregor | US 18 / Iowa 76 in Marquette | 1989 | current | Serves McGregor and Marquette; former routing of US 18 |
| US 20 Business |
— | — | US 77 / US 20 Bus. at South Sioux City, Neb. | US 20 / US 75 at Sioux City | 1979 | current | Serves Sioux City area; former routing of US 20 |
| US 20 Business |
— | — | US 20 west of Fort Dodge | US 20 east of Fort Dodge | 1996 | current | Serves Fort Dodge; former routing of US 20 |
  US 30 Alternate |
— | — | US 30 Alt. at Omaha, Neb. | US 30 in Missouri Valley | 1939 | 1969 | Former routing of US 30 |
| US 30 Alternate |
— | — | US 30 / US 67 in Clinton | US 30 Alt. at Fulton, Ill. | 1956 | 1967 | Former routing of US 30 |
| US 30 Business |
— | — | US 30 southwest of Marshalltown | US 30 in southeastern Marshalltown | — | — | Serves Marshalltown; former routing of US 30 |
| US 30 Business |
— | — | US 30 west of Toledo | US 30 east of Tama | 2011 | current | Serves Tama and Toledo; former routing of US 30 |
| US 34 Business |
— | — | I-29 / US 34 near Pacific Junction | US 34 / US 275 in Glenwood | — | 2003 | Former routing of US 34 |
| US 34 Business |
— | — | US 34 west of Chariton | US 34 east of Chariton | — | — | Serves Chariton; former routing of US 34 |
| US 34 Business |
— | — | US 34 in southwestern Ottumwa | US 34 / US 63 in eastern Ottumwa | — | — | Serves Ottumwa |
| US 34 Business |
— | — | US 34 / Iowa 163 west of Fairfield | US 34 / Iowa 163 east of Fairfield | 2008 | current | Serves Fairfield; former routing of US 34 |
| US 34 Business |
— | — | US 34 / Iowa 163 near Westwood | US 34 / US 218 / Iowa 27 / Iowa 163 at Mount Pleasant | — | — | Serves Mount Pleasant area; former routing of US 34 |
x25px US 52 Alternate |
— | — | US 52 / US 61 / US 151 in Dubuque | US 52 / Iowa 3 in Luxemburg | — | — | Original routing of US 52; mainline US 52 traffic diverted to allow for repairs on the alternate route |
| US 61 Business |
— | — | US 61 / US 136 in southwestern Keokuk | US 61 / US 218 in northwestern Keokuk | — | — | Serves Keokuk; former routing of US 61 |
| US 61 Business |
3.613 | 5.815 | US 61 / Iowa 2 west of Fort Madison | US 61 northeast of Fort Madison | 2011 | current | Serves Fort Madison; former routing of US 61 |
| US 61 Business |
— | — | US 61 / Iowa 92 in southwestern Muscatine | US 61 / Iowa 22 / Iowa 38 / Iowa 92 in northeastern Muscatine | — | — | Serves Muscatine; former routing of US 61 |
| US 61 Business |
10.750 | 17.300 | I-280 / US 61 west of Davenport | I-80 / US 61 in northern Davenport | 2010 | current | Serves Davenport; former routing of US 61 |
| US 61 Business |
— | — | US 61 in southern Maquoketa | US 61 / Iowa 64 in western Maquoketa | — | — | Serves Maquoketa; unsigned |
| US 63 Business |
— | — | US 34 / US 63 in southeastern Ottumwa | US 34 / Iowa 149 / Iowa 163 north of Ottumwa | — | — | Serves Ottumwa; former routing of US 63 |
| US 63 Business |
— | — | US 18 / US 63 south of New Hampton | US 63 north of New Hampton | — | — | Serves New Hampton; former routing of US 63 |
References
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The Iowa Highways Page by Jason Hancock
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